ME APARESE ESTO :

—- Minecraft Crash Report —-
// Don’t do that.

Time: 25/05/15 21:15
Description: Updating screen events

java.lang.NullPointerException: Updating screen events
at net.minecraft.client.gui.inventory.GuiContainer.func_146983_a(GuiContainer.java:666)
at net.minecraft.client.gui.inventory.GuiContainer.func_73869_a(GuiContainer.java:649)
at codechicken.core.inventory.GuiContainerWidget.func_73869_a(GuiContainerWidget.java:99)
at net.minecraft.client.gui.inventory.GuiContainer.public_func_73869_a(GuiContainer.java)
at codechicken.nei.guihook.GuiContainerManager.callKeyTyped(GuiContainerManager.java)
at codechicken.nei.guihook.GuiContainerManager.keyTyped(GuiContainerManager.java:505)
at codechicken.nei.guihook.GuiContainerManager.handleKeyboardInput(GuiContainerManager.java:477)
at net.minecraft.client.gui.inventory.GuiContainer.func_146282_l(GuiContainer.java)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:276)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1580)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:917)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:835)
at net.minecraft.client.main.Main.main(SourceFile:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:
—————————————————————————————

— Head —
Stacktrace:
at net.minecraft.client.gui.inventory.GuiContainer.func_146983_a(GuiContainer.java:666)
at net.minecraft.client.gui.inventory.GuiContainer.func_73869_a(GuiContainer.java:649)
at codechicken.core.inventory.GuiContainerWidget.func_73869_a(GuiContainerWidget.java:99)
at net.minecraft.client.gui.inventory.GuiContainer.public_func_73869_a(GuiContainer.java)
at codechicken.nei.guihook.GuiContainerManager.callKeyTyped(GuiContainerManager.java)
at codechicken.nei.guihook.GuiContainerManager.keyTyped(GuiContainerManager.java:505)
at codechicken.nei.guihook.GuiContainerManager.handleKeyboardInput(GuiContainerManager.java:477)
at net.minecraft.client.gui.inventory.GuiContainer.func_146282_l(GuiContainer.java)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:276)

— Affected screen —
Details:
Screen name: ~~ERROR~~ NullPointerException: null

— Affected level —
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP[‘simon’/208, l=’MpServer’, x=1136,69, y=5,62, z=1140,48]]
Chunk stats: MultiplayerChunkCache: 285, 294
Level seed: 0
Level generator: ID 01 – flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (966,4,1130), Chunk: (at 6,0,10 in 60,70; contains blocks 960,0,1120 to 975,255,1135), Region: (1,2; contains chunks 32,64 to 63,95, blocks 512,0,1024 to 1023,255,1535)
Level time: 18185 game time, 4014 day time
Level dimension: 0
Level storage version: 0x00000 – Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 48 total; [EntitySlime[‘Slime’/1374, l=’MpServer’, x=1111,72, y=4,00, z=1076,37], EntitySlime[‘Slime’/283, l=’MpServer’, x=1189,75, y=4,00, z=1134,78], EntitySlime[‘Slime’/286, l=’MpServer’, x=1060,10, y=4,00, z=1207,06], EntitySlime[‘Slime’/285, l=’MpServer’, x=1138,66, y=4,93, z=1088,69], EntitySlime[‘Slime’/1360, l=’MpServer’, x=1072,93, y=1,18, z=1127,46], EntitySlime[‘Slime’/562, l=’MpServer’, x=1213,00, y=4,69, z=1128,01], EntitySlime[‘Slime’/1648, l=’MpServer’, x=1143,36, y=4,00, z=1218,97], EntitySlime[‘Slime’/1110, l=’MpServer’, x=1113,31, y=4,00, z=1086,91], EntitySlime[‘Slime’/788, l=’MpServer’, x=1184,66, y=4,00, z=1103,16], EntityItem[‘item.item.slimeball’/174, l=’MpServer’, x=1084,44, y=1,13, z=1127,03], EntityPig[‘Chancho’/163, l=’MpServer’, x=1069,47, y=1,00, z=1130,53], EntityItem[‘item.item.porkchopRaw’/187, l=’MpServer’, x=1104,25, y=4,13, z=1144,56], EntitySlime[‘Slime’/289, l=’MpServer’, x=1102,66, y=4,00, z=1223,06], EntitySlime[‘Slime’/290, l=’MpServer’, x=1206,78, y=4,00, z=1146,50], EntitySlime[‘Slime’/184, l=’MpServer’, x=1065,34, y=1,00, z=1120,71], EntityItem[‘item.item.rottenFlesh’/185, l=’MpServer’, x=1107,47, y=4,13, z=1114,75], EntitySlime[‘Slime’/188, l=’MpServer’, x=1086,56, y=4,00, z=1162,69], EntitySlime[‘Slime’/294, l=’MpServer’, x=1153,00, y=4,00, z=1086,06], EntitySlime[‘Slime’/1630, l=’MpServer’, x=1111,26, y=4,99, z=1073,27], EntityPig[‘Chancho’/179, l=’MpServer’, x=1089,63, y=1,00, z=1114,56], EntitySlime[‘Slime’/423, l=’MpServer’, x=1119,33, y=4,00, z=1190,83], EntityHat[‘desconocido’/1379, l=’MpServer’, x=1192,50, y=4,00, z=1167,50], EntitySlime[‘Slime’/659, l=’MpServer’, x=1186,47, y=4,81, z=1112,89], EntitySlime[‘Slime’/205, l=’MpServer’, x=1104,09, y=4,00, z=1110,47], EntitySlime[‘Slime’/200, l=’MpServer’, x=1083,20, y=5,01, z=1156,79], EntityHat[‘desconocido’/351, l=’MpServer’, x=1136,69, y=5,62, z=1140,48], EntitySlime[‘Slime’/193, l=’MpServer’, x=1215,46, y=5,00, z=1101,57], EntitySlime[‘Slime’/1294, l=’MpServer’, x=1192,50, y=4,00, z=1167,50], EntitySlime[‘Slime’/216, l=’MpServer’, x=1129,83, y=5,06, z=1124,98], EntitySlime[‘Slime’/217, l=’MpServer’, x=1089,47, y=4,00, z=1209,19], EntityHat[‘desconocido’/456, l=’MpServer’, x=1129,83, y=5,06, z=1124,98], EntitySlime[‘Slime’/213, l=’MpServer’, x=1121,41, y=5,00, z=1121,56], EntityHat[‘desconocido’/453, l=’MpServer’, x=1211,62, y=4,00, z=1145,40], EntitySlime[‘Slime’/753, l=’MpServer’, x=1101,09, y=4,00, z=1143,00], EntitySlime[‘Slime’/1287, l=’MpServer’, x=1125,55, y=4,47, z=1117,35], EntitySlime[‘Slime’/209, l=’MpServer’, x=1211,62, y=4,00, z=1145,40], EntitySlime[‘Slime’/211, l=’MpServer’, x=1183,66, y=4,00, z=1078,03], EntityHat[‘desconocido’/1184, l=’MpServer’, x=1065,34, y=1,00, z=1120,71], EntitySlime[‘Slime’/235, l=’MpServer’, x=1201,05, y=4,00, z=1158,40], EntitySlime[‘Slime’/1189, l=’MpServer’, x=1090,98, y=4,62, z=1124,14], EntitySlime[‘Slime’/719, l=’MpServer’, x=1164,40, y=4,14, z=1186,72], EntityClientPlayerMP[‘simon’/208, l=’MpServer’, x=1136,69, y=5,62, z=1140,48], EntitySlime[‘Slime’/1561, l=’MpServer’, x=1108,05, y=4,81, z=1139,25], EntitySlime[‘Slime’/721, l=’MpServer’, x=1145,70, y=4,96, z=1202,94], EntitySlime[‘Slime’/722, l=’MpServer’, x=1184,71, y=4,60, z=1209,23], EntitySlime[‘Slime’/841, l=’MpServer’, x=1168,91, y=4,00, z=1163,72], EntitySlime[‘Slime’/847, l=’MpServer’, x=1121,74, y=4,35, z=1065,68], EntitySlime[‘Slime’/1454, l=’MpServer’, x=1129,16, y=4,00, z=1218,03]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:368)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2383)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:856)
at net.minecraft.client.main.Main.main(SourceFile:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

— System Details —
Details:
Minecraft Version: 1.7.2
Operating System: Windows 8.1 (x86) version 6.3
Java Version: 1.7.0_79, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 91862464 bytes (87 MB) / 317616128 bytes (302 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 8568 (479808 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.03 FML v7.2.211.1128 Minecraft Forge 10.12.2.1128 Optifine OptiFine_1.7.2_HD_D1 8 mods loaded, 8 mods active
mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.2.211.1128} [Forge Mod Loader] (forge-1.7.2-10.12.2.1128.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.12.2.1128} [Minecraft Forge] (forge-1.7.2-10.12.2.1128.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{1.0.0} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.0.1} [Not Enough Items] (Not Enough Items 1.7.2 (1.0.1) Universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
iChunUtil{3.3.0} [iChunUtil] (iChunUtil-3.3.0 para 1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Hats{3.0.1} [Hats] (Hats-3.0.1 para 1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HatStand{3.0.0} [HatStand] (HatStand-3.0.0 para 1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Launched Version: 1.7.2-Forge10.12.2.1128
LWJGL: 2.9.0
OpenGL: Intel(R) HD Graphics GL version 4.0.0 – Build 10.18.10.3366, Intel
Is Modded: Definitely; Client brand changed to ‘fml,forge’
Type: Client (map_client.txt)
Resource Packs: []
Current Language: Español (Argentino)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1066 (59696 bytes; 0 MB) allocated, 22 (1232 bytes; 0 MB) used
Anisotropic Filtering: Off (1)